Sonar Lexus GS400 Red/Clear LED Tail Lights (aka Spyder Lexus GS400 Red/Clear LED Tail Lights) are a slick high tech upgrade for old or worn out stock tail lights on your GS400. L.E.D. taillights are the newest type of tail lights available, and they use super bright and fast acting LED's to give your GS400 the look of the newer high end vehicles on the road. With a relatively simple installation, you could enjoy the benefits of faster light response time as well as increasing the visibility of your signaling and braking. Best of all, these Sonar GS400 L.E.D Red/Clear tail lamps give you a clean look similar to the Euro red/clear style of taillights, with the same type of aggressive styling found on Altezza tails. Also, due to their bulb-less design, they are more resistant to leaking and fogging up than the other styles of tail lens available.

Sonar (aka Spyder) has long been the most popular brand of aftermarket custom lighting for your Lexus GS400, and for good reason due to their large selection, striking designs, and affordability. Sonar has long been an innovator in new and unique taillight designs, despite their relatively smaller size compared to other lighting companies. All Sonar tail lights are designed for function and durability, and add that custom look and feel for your Lexus GS400.

These Sonar Lexus GS400 Red/Clear LED Tail Lights, like all the other projector head lights, taillamps, and fog lights on our site, come complete with both sides, and should be street legal in most communities.

Tools generally needed to install Lexus GS400 Tail Lights

Socket wrench set or Phillips screw driver

Painters tape to prevent scratches to your Lexus GS400

(Rare) Torque wrenches, etc.

Lexus GS400 Tail Light installation procedure

Inspect the new set of Lexus GS400 tail lights to make sure you can complete the installation with the tools you have available.

Disconnect your Lexus GS400 battery's negative battery terminal. If your stereo requires a key in order to reboot, please be sure you have it before disconnecting the battery. Also, be aware that you will probably have to reset your clocks, etc. after reconnecting the battery later. Please note that some vehicles (such as newer GMs) have extremely sensitive electrical systems. In these cases failure to disconnect the battery before attempting installation may lead to blown taillamp fuses or other damage.

Apply painters tape on your Lexus GS400 around the edges of your GS400's taillights to prevent any scratches that might occur while removing and installing taillamps. If uninstalling your Lexus GS400 rear bumper is required, make sure you have a safe surface to place the GS400 bumper on and that the working surface below the vehicle is also safe in the event the bumper falls down. This step is particularly important because tail lens, unlike headlights, often require a little force to come loose, leaving many people to inadvertently scratch their Lexus GS400 in the process.

Without touching the glass, uninstall the stock brake, signal and reverse bulbs (as applicable). For bulbs with flat rectangle harnesses, you just pull the bulb firmly outward. For bulbs with round bases, you usually just push them in a bit, and then turn a quarter turn to release them. Once the bulb is removed, place them in their original container (if available). If they are cold, you could also store them in a ziplock type of bag. Please note that if your Lexus GS400 tail lamps have a harness that can be separated via a main harness that leaves part of the harness with the bulbs inside the GS400 tail lights, you will still need both parts of the harness since the aftermarket Lexus GS400 tail lights are designed to either re-use the stock bulbs (altezzas) or to connect directly into the bulb harnesses (LED taillights).

Unscrew the Lexus GS400 taillamps from the front or use a socket wrench to undo the GS400 tail lamps from the back. Be aware that the old Lexus GS400 tail lights might fall immediately once the tension of the bolts is removed. For this reason, it is best to lightly hold the lights in place with your free hand as you unbolt or unscrew them.

Remove the old Lexus GS400 taillens and store in a way that the lens will not be scratched. Install the new Lexus GS400 tail lens and bolt / screw in place.

Lexus GS400 LED Tail Lights: Some of your stock bulbs, such as the reverse lights, might be re-used in your new GS400 LED lights. For the rest, the LED lights will come with male plugs that should be identical to the ends of your stock bulbs. Connect these into your stock harnesses. For plug in type harnesses, please try to install the plugs in the opposite orientation if they do not work.

Lexus GS400 LED Tail Lights: Since Lexus LED taillights operate at a lower wattage than your stock bulbs, they include a resistor in order to regulate the current being passed to them. While sometimes this box is internal, more often it is external and connected via a plastic plug. In the case of an external resistor box, it needs to be mounted somewhere (they usually have double sided tape on the backs) where it will be away from heat and moisture.

Reconnect your Lexus GS400 battery and turn on your Lexus GS400 taillamps and check for proper operation and blinking speed. If any functions are not operational, try flipping the plugs the reverse orientation and double checking that the resistor boxes are fully connected.

Reconnect all connections and tighten all bolts in place.

Are these Lexus GS400 tail lights sold by piece or as a pair?

All our Lexus taillights are sold in the full pair. When you pay the listed price, you receive the complete set including both the right and the left sides.

Are these Lexus GS400 tail lights street legal?

As far as we know the Sonar (aka Spyder) and KS (Anzo) brand tail lights on our website are all street legal as mandated by federal law in the United States. This basically means that they are designed to the specifications set forth by the DOT (United States Department of Transportation). Occasionally, DOT might test models for compliance. If any Lexus GS400 taillights fail (rare) DOT will have the companies issue a recall. For those tail lens, you can return them to us for a refund. For any other brands besides Sonar (aka Spyder) and KS (aka Anzo), we can not guarantee DOT compliance. Also, please be advised that your local laws that may disallow these sorts of taillights to be used.

After I installed Lexus GS400 LED tail lights my front signals are blinking fast. What do I do?

Your Lexus GS400 front and rear signals are connected, so when you have a problem with one you will have a problem with the other. A fast blinking signal usually points to too much wattage going through the system. This can be caused by three different situations: 1) a dead bulb in the front or the rear, 2) the appropriate plug on the LED taillamp being plugged in upside down, or 3) the resistor box not being connected or malfunctioning.

Dead bulbs can be examined by eye for blowouts. If one of the wires is broken and/or you see a burnt part of the bulb, then it is probably dead. For the LED plugs, this would only be the case if they were ALWAYS blinking fast. To remedy that situation, just unplug and replug the bulb in the opposite orientation. For a defective resistor box, check the connection. Worst case, try the resistor box from the other side to isolate the problem.

How can I prevent my Lexus GS400 tail lights from fogging up?

During the first few days of operation, it is normal to see some moisture appear in your Lexus GS400 tail lens. This is due to the small amounts of moisture in the plastic and coating that are evaporated when the tail lens are first warmed up during use. This sort of moisture is normal and should disappear within a few days.

To be sure that no external moisture gets into the new Lexus GS400 tail lens though, it is a prudent idea to silicone seal the edges. Clear silicone sealant can be found in any hardware store (and some auto part stores), and can be applied to the seam along the GS400 taillights where the clear lens meets the rear housing. Also, even if a bulb has died, make sure to keep it installed in the GS400 tail lamp until you replace it to prevent moisture from entering through the bulb hole.

Can I smoke my Lexus GS400 tail lights?

While smoking your Lexus GS400 taillights (tinting them) is certainly possible through the use of carefully applied spray tint (use light even coats), doing so may make them too dark to be legal. Please check your local laws as well as smoked Lexus GS400 taillights of any darkness might be illegal in your area.

Features

Designed to work with stock harness

Plug-n-play taillights, no additional hardware required

Super bright LED's increase signal performance and visibility

Fitment

The Tail Lights (LED Style) offered on this page are designed to specifically fit a Lexus GS400 produced during the following model years:
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 or 98, 99, 00, 01, 02, 03, 04, 05. Please also note any specific model notes on the product title at the top of the page.

While it may fit other vehicles, Please try the vehicle search on the center of our main page. or email us if you have any questions.

Sonar Lighting® Tail Lights (LED Style)
Reviews (49)

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The tail lights look great. The only downside of these tail lights is that the blinker wiring harness is not long enough to reach the new housing. The harness will reach after disconnecting it's clip.

Sonar® LED Tail Lights (Black)

Posted by ci-craiggerich
- (2009 - 2013 Ford F-150)

GREAT PRODUCT I INSTALLED THEM LAST NIGHT AND THEY ARE REALLY BRIGHT AND MAKE MY TRUCK LOOK EVEN BETTER,AND LOOK BETTER THEN MORE EXPENSIVE LIGHTS ON THE MARKET, OMAR WAS A GREAT HELP- WILL RECOMMEND

Sonar® LED Tail Lights (Smoke)

Posted by nextlevel
- (2007 - 2012 Toyota Tundra)

product was great but shipping took forever. Company is very hard to get a hold of

Sonar® LED Tail Lights (Smoke)

Posted by twhodini258
- (2011 - 2013 Hyundai Elantra)

They look AWESOME! day and night. The lights are even and mounting wasn't difficult even though there were no instructions. My car is black the smoked look is the way to go. No complaints so far. They have been installed 2 weeks.

Sonar® LED Tail Lights (Red⁄Smoke)

Posted by wjb50675
- (1997 - 2003 Pontiac Grand Prix)

Excellent purchase. I did expect them to be a little brighter but no regrets what so ever.